estimates for males and females cover a 5 year period from 1982 to 2006
uses linked data from the Longitudinal Study ((LS) part of a paid service by us that collected data of the same variables over long periods of time), tracking individuals from their point of entry into the study until death, or the most recent point in time to the period of analysis
based on the 6 European Statistical System Quality Dimensions
Trends in life expectancies by National Statistics Socio Economic Classification updates the earlier series, Trends in ONS longitudinal study estimates of life expectancy, 1972 to 2005, with the current National Statistics Socio Economic Classification (NS-SEC).
Data are taken from the LS, roughly a 1% sample of the population of England and Wales, based on the method developed by Johnson (2011). The 3 steps in the creation of the statistics are:
the assignment of NS-SEC to a member on entry to the LS
estimation of age specific mortality rates for males and females by NS-SEC
the creation of life tables for males and females by NS-SEC
These statistics are used to measure the inequalities on a timely basis, policy planning and background context for further research. The users include the Department of Health, the Department of Work and Pensions, academics and researchers.